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Question

Write the prime factorisations of $$16, 28, 38$$.

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Solution

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$$16=2\times2\times2\times2$$
$$28=2\times2\times2$$
$$38=2\times19$$
Prime factor $$16=2^4$$
Prime factor $$28=2^2\times 7$$
Prime factor $$38=2\times19$$

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